Debug Rendering Problems

If you suspect that your content isn't processed or rendered correctly on
Google Search, please review our debugging
tips, and try one of the following methods to test and debug the problem:

Use the Fetch
and Render as Google tool in Search Console to test how Google crawls and
renders a URL on your site. You can request the "fetch and render" for a
specific URL, inspect the HTTP response headers, and view the visual preview of
the page, as seen by Google Search.

Audit JavaScript execution errors by logging the errors.
Here's an example snippet that shows how to log JavaScript
errors logged to the global
onerror handler.